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Finding the Fourth Proportional to 6,245.92, 9,368.78 and 1,628.92

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Solution

The fourth proportional to 6,245.92, 9,368.78 and 1,628.92 is: 2,443.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,245.92 : 9,368.78 = 1,628.92 : x
  2. Step 2: Convert to fraction form
    6,245.92/9,368.78 = 1,628.92/x
  3. Step 3: Cross multiply
    6,245.92x = 9,368.78 × 1,628.92
  4. Step 4: Simplify right side
    6,245.92x = 15,260,993.12
  5. Step 5: Solve for x
    x = 15,260,993.12/6,245.92
  6. Step 6: Final answer
    x = 2,443.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.